Super Obesity, i.e. a BMI above 50, is difficult to treat. Normal gastric bypass surgery is not always enough. Bypassing a longer segment of the gut may be more beneficial. Which part to bypass is not clear.

The investigators want to compare the effects between preventing a proximal (oral) portion of the jejunum from food contact with the effects when preventing the jejunum from contact with bile and pancreatic juice.

Endpoints are quality of life, gstrointestinal function, and weight development.

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Please refer to this study by its ClinicalTrials.gov identifier: NCT01514799